:root {
    --blu: #2f4fd6;
    --blu-scuro: #1b2b6b;
    --azzurro: #8fd0ff;
    --testo: #1c2333;
    --testo-tenue: #5b647a;
    --sfondo: #f6f8ff;
    --pannello: #ffffff;
    --bordo: #e2e7f7;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
    color: var(--testo);
    background: var(--sfondo);
    line-height: 1.55;
}

a { color: var(--blu); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header.top {
    background: linear-gradient(135deg, var(--blu-scuro), var(--blu));
    color: #fff;
    padding: 18px 0;
}
header.top .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 1.3rem; font-weight: 700; color: #fff; }
.brand img { width: 40px; height: 40px; }
nav.top-nav a {
    color: #dfe7ff;
    margin-left: 22px;
    font-weight: 600;
    font-size: .95rem;
}
nav.top-nav a:hover { color: #fff; text-decoration: none; }

.hero {
    background: linear-gradient(160deg, var(--blu-scuro) 0%, var(--blu) 55%, #3f6df0 100%);
    color: #fff;
    padding: 72px 0 88px;
    text-align: center;
}
.hero img { width: 96px; height: 96px; margin-bottom: 18px; }
.hero h1 { font-size: 2.4rem; margin: 0 0 12px; letter-spacing: .5px; }
.hero p { font-size: 1.15rem; color: #dfe7ff; max-width: 640px; margin: 0 auto 28px; }
.hero .cta { display: inline-block; background: #fff; color: var(--blu-scuro); font-weight: 700; padding: 12px 28px; border-radius: 8px; }

main { padding: 56px 0 40px; }

h2.sezione { font-size: 1.6rem; margin-bottom: 6px; }
p.sottotitolo { color: var(--testo-tenue); margin-top: 0; margin-bottom: 32px; }

.grid-software {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}

.card {
    background: var(--pannello);
    border: 1px solid var(--bordo);
    border-radius: 14px;
    padding: 26px;
    box-shadow: 0 2px 10px rgba(31, 45, 110, .05);
}
.card .icona { font-size: 2.1rem; margin-bottom: 10px; }
.card h3 { margin: 0 0 6px; font-size: 1.15rem; }
.card .tagline { color: var(--testo-tenue); font-size: .92rem; margin: 0 0 14px; }
.card .piattaforma { display: inline-block; background: #eef2ff; color: var(--blu-scuro); font-size: .78rem; font-weight: 700; padding: 3px 10px; border-radius: 20px; margin-bottom: 10px; }
.card .prezzo { font-weight: 700; color: var(--blu-scuro); }
.card .btn-acquista {
    display: inline-block; margin-top: 14px; background: var(--blu); color: #fff;
    padding: 9px 18px; border-radius: 7px; font-weight: 600; font-size: .9rem;
}
.card .btn-acquista:hover { background: var(--blu-scuro); text-decoration: none; }

.vuoto {
    text-align: center;
    color: var(--testo-tenue);
    padding: 40px 20px;
    border: 1px dashed var(--bordo);
    border-radius: 14px;
    background: var(--pannello);
}

.panel {
    background: var(--pannello);
    border: 1px solid var(--bordo);
    border-radius: 14px;
    padding: 30px;
    margin-bottom: 24px;
}

.credits dl { display: grid; grid-template-columns: 160px 1fr; gap: 10px 16px; margin: 0; }
.credits dt { color: var(--testo-tenue); font-weight: 600; }
.credits dd { margin: 0; }

form.contatti label { display: block; font-weight: 600; margin-bottom: 6px; margin-top: 16px; }
form.contatti input, form.contatti textarea {
    width: 100%; padding: 10px 12px; border: 1px solid var(--bordo); border-radius: 8px; font-size: 1rem; font-family: inherit;
}
form.contatti button {
    margin-top: 20px; background: var(--blu); color: #fff; border: none; padding: 11px 26px;
    border-radius: 8px; font-weight: 700; font-size: 1rem; cursor: pointer;
}
form.contatti button:hover { background: var(--blu-scuro); }
.msg { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-weight: 600; }
.msg.ok { background: #e6f7ea; color: #1c7a3c; }
.msg.error { background: #fdeaea; color: #b3261e; }

footer.bottom {
    background: var(--blu-scuro);
    color: #cbd6ff;
    padding: 34px 0;
    font-size: .88rem;
    margin-top: 40px;
}
footer.bottom .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer.bottom a { color: #dfe7ff; }
footer.bottom .contatore { color: #93a4de; }